Chittagong Division
| Chittagong Division চট্টগ্রাম বিভাগ | |
|---|---|
| Coordinates: 22°55′N 91°30′E / 22.917°N 91.500°E | |
| Country | Bangladesh | 
| Established | 1829 | 
| Capital and largest city | Chittagong | 
| Government | |
| • Divisional Commissioner | Muhammad Ziauddin | 
| • Parliamentary constituency | Jatiya Sangsad (58 seats) | 
| Area | |
| 34,529.97 km2 (13,332.10 sq mi) | |
| Population  (2022) | |
| 33,202,357 (Enumerated) | |
| • Urban | 11,180,333 | 
| • Rural | 22,016,799 | 
| • Metro | 3,670,740 | 
| • Adjusted Population | 34,178,612 | 
| Languages | |
| • Official language | Bengali • English | 
| • Regional language | Chittagonian Noahkhailla | 
| • Indigenous minority languages | |
| Religion (2022) | |
| • Religion | List 
 | 
| Time zone | UTC+6 (BST) | 
| ISO 3166 code | BD-B | 
| Notable sport teams | Chattogram Challengers, Chittagong Division Cricket Team, Chittagong Abahani, Comilla Victorians | 
| Districts | 11 | 
| Sub-Districts | 103 | 
| Union Councils | 949 | 
| Website | www | 
Chittagong Division (Bengali: চট্টগ্রাম বিভাগ), officially Chattogram Division, is geographically the largest of the eight administrative divisions of Bangladesh. It covers the southeasternmost areas of the country, with a total area of 34,529.97 km2 (13,332.10 sq mi) and a population according to the 2022 census of 33,202,326, which makes it the second most populous division and the 45th most populous subnational entity in the world — more populous than all but 43 other countries. The administrative division includes mainland Chittagong District, neighbouring districts and the Chittagong Hill Tracts.
Chittagong Division is home to Cox's Bazar, the longest natural sea beach in the world; as well as St. Martin's Island, Bangladesh's sole coral reef.